Window construction



Sept. 2, 1958 K. PUIDAK 2,849,761

wmnow CONSTRUCTION Filed Nov. 13, 1957 2 Sheets-Sheet 1 mmvroa KarlPuidcz/n.

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ATTORNEYS.

SeptQZ, 1958 K. PUIDAK wmnow consmucnou 2 Sheets-Sheet 2 Filed Nov. 13,1957 y- 4aazaazz/9-e 'LEIIIII 14/rlilllrllniilllllvll u @HHFF. Q 9 I! "wll? INVENTOR.

Karl Puidak.

BY Maw ATTORNEYS.

' construction on the line 44, Fig. 3'.

United States Patent WINDOW CONSTRUCTION Karl Puidak, Kansas City, Mo;

Application November 13, 1957, Serial No. 696,202

9 Claims. (Cl. 20-53) This invention relates to improvements in windowconstruction, and more particularly'to a structure wherein the windowsash is secured in sealed relationship to the window frame defining thewindow. opening.

The principal objects of the present invention are to provide a windowconstruction wherein the window sash is bodily movable relative to thewindow frame or casing and is held in sealing engagement with magneticsecuring devices; to provide a window structure wherein the sash isbodily movable for maximum ventilation /with cooperative sealing membersonthe sash and frame held 2 in weathertight engagement withpermanentmagnets removably mounted on the sash and cooperating with poleplates on the window frame; to provide magnet housings havingthroughpassages from end to end fixed on a wherein the mild steel sideplates are mounted on the window member whereby the side platesare'engaged with non-magnetic material of the Window member or mounting;to provide such a window construction in which the individual magnetsmay be easily removed from their respective housings to release thewindow relativeto the frame and yet have a structure wherein the magnetswhen in place with increased magnetic flux'provided by the mild steelside plates will hold the windows with a very strong force that willresist high winds and the like; and to provide a window constructionthat is economical to manufacture for positively-securing window sashrelative to the window jambs yet be readily removable with a minimumofe'fiort.

In accomplishing these and other objects 'of the present' invention, 1have provided improved'details of struc-' ture, the preferred forms ofwhich are illustratedin the accompanyingdrawings, wherein: i i

Fig. l is an elevational view of a window construction held in closingposition.

Fig. 2 is an enlarged fragmentary perspective view of the window frame,Window sash and seal frame with the securingmenibers thereon indisassembled relation.

' "Fig. '3 is an enlarged fragmentary horizontal sectional 'view throughthe window construction on the line 33, "Fig. 1. i Y

Fig. 4 is averti'cal sectional view through the window Fig. 5 is a'verticalsectional view through the window construction on the line 55,Fig. 3.

Fig. 6 is an enlarged horizontal sectlonalvi'ew through the windowconstruction on the line 6-36, Fig.1.

Fig. 7 is a fragmentary perspective view of a modified form of'wiiidowconstruction withthe parts in spaced disassembled relation. 1

Fig. 8-"is an enlarged horizontalsectional 'view through I 2,849,761Patented Sept. 2, 1958 2 the modified form of window constructionshowing the mounting of the magnetic securing members thereon.

Referring more in detail to the drawings:

1 designates a window construction comprising a window casing or frame 2including a sill 3, side jambs 4 and a header 5, each of which isarranged to provide a blind stop 6 defining the window opening 7 andhaving an inwardly facing shoulder 8. In this form of the invention, thewindow opening .7 is relatively large and is adapted to be closed bya..sing1e sash 9 which due to the size would be inconvenient to bodilymove to and from the window opening. Therefore, it is preferable thatthe window sash be pivotally mounted in the window opening.

The window sash 9 includes a frame 10 in which a pane 11 is, mounted ina conventional manner, said frame having inner and outer faces 12 and13. The sash frame is of such a size that the outer surfaces or edges 14are slightly spaced as at 15 from the inner edges 16 of the stops 6whereby the sash frame is movable through the window opening 7. The sashframe is pivotally mounted on trunnion members 17 rotatably supported inbrackets 18 suitably secured by fastening devices such as screws 19 tothe window frame, as illustrated in Fig. 6. Seal strips 20 are securedto the inner and outer faces 12 and 13 of the sash frame adjacent theperiphery thereof whereby the sash is reversible in the window frame, ifdesired, said sash being freely pivotablein the window opening. In orderto secure the sash in weatherti-ght relation to the frame, an auxiliaryframe 21 is mounted in the window frame in sealing engagement withtheseal strip 20 on the inner face of the window sash, and also insealing engagement with a resilient seal strip 22 on the face 8 of thestop 6 adjacent the inner edges thereof around the window opening.

The frame 21 has a peripheral wall 23 with an edge 24 adaptedto engagethe seal strip 22 when the wall 23 is in position surrounding the Windowsash frame. The edge of the wall 23. opposite the edge 24 is turnedinwardly whereby the auxiliary frame is substantially L- shaped in crosssection with the inner wall 25 terminating in a lip 26 adapted to engagethe seal strip 20 around the inner face of the window sash frame, theauxiliary frame being such and related to the seal strips 20 and 22whereby there is a weathertight seal completely surrounding the windowsash and window opening.

The auxiliary frame is held in place to provide the weathertight sealfor the window opening by means of a plurality of magnetic securingdevices 27. The securing devices 27 each include housings 23 havinglaterally spaced side plates 29 and 30 of mild steel or other permeablematerial. The plates 29 and 30 are supported by non-magnetic materialwhich in the illustrated structure is in the form of spacers 31therebetween whereby the spacers 31 and plates 29 and 30 form throughpassages 32 to slidably mount bar type permanent magnets 33. Thehousings are positioned whereby the passages 32 are perpendicular to theface 8 of the blind stop 6, said housings preferably being mounted onthe frame 21 by means of suitable fastening devices such as bolts 34 ofnonferrous metal with a spacer strip 35 of non-magnetic material betweenthe plate 30 and the peripheral wall 23 of the frame 21 whereby the sideplate adjacent said frame 21 does not contact any permeable metal. Thehousings are fixed on the auxiliary frame 21 at suitable spacedintervals thereon, and in the form illustrated in Fig. 1 there are eightsuch housings arranged around the frame. A plurality of mild steelplates 36 are fixed on the face 8 of the blind stop 6 and positionedwhereby one registers with the passage of each of the housings andserves as an armature plate 36 in the magnetic securing device. Thearmature plates 36 are preferably secured to the window frame or blindstop by means of suitable fastening devices 37 such as screws and thelike.

When the frame 21 is positioned surrounding the window sash with theedge 24 and lip 26 sealingly engaging the sealing strips 22 and 20respectively, the end edges 38 of the side plates 29 and 30 engage thefront face 39 of the respective armature plate 36. The bar type magnets33 each have a size to substantially fill the passage in the respectivehousing and engage the side plates and are slidably moved into thepassages until the inner ends 40 of the magnets engage stops 41 whichprovide for a slight spacing between the inner ends 40 of the magnet andthe armature plate 38. In the illustrated structure, the stop 41 is inthe form of a non-ferrous pin extending across the inner end of thepassage 32. The magnets 33 are preferably formed of sintered materialsometimes referred to as ceramic magnets or other relatively strongpermanent magnet of small size. positioned between the side plates 29and 30 and spaced slightly from the armature plate 38, the magnetic fluxis materially increased providing a very strong attraction to-firmlyhold the auxiliary frame 21 relative to the window frame or casing. Whenit is desired to open the window, the individual magnets 33 may bepulled from the housings with little effort which is a mere fraction ofthe force holding the housings relative to the armature plate, and whenthe magnets are removed from the individual housings, the auxiliaryframe may be lifted and removed from the window casing freeing thewindow sash for pivotal movement as desired. With the sealing strips 2t?on the opposite faces of the sash frame, the sash may be reversed andthe auxiliary frame positioned and the magnets inserted to providea'weathertight seal for the window opening and sash, positively holdingthe window sash in position.

In the-form of the invention illustrated in Figs. 7 and 8, the windowopening 44 defined by the casing 45 and blind stop 46 thereof issufl'lciently small whereby the sash and frame 47 may be easily liftedand moved. In this form of the invention, the inner face 48 of the stop46 has a seal strip 49 around the edge of the window opening and thereare a plurality of spaced armature plates 59 secured to the face 48 ofthe stop and spaced around the window opening for alignment withpassages 51 through magnet housings 52 secured to the sash frame 47.

In the modified form of the invention, the sash frame is larger than thewindow opening 44 whereby the frame overlies seal strips 49, the sashframe preferably having ribs 53 extending from the inner and outer faces54 and 55 of said frame to sealingly engage the strips 49 on the stop46. While the structure shown in Figs. 7 and 8 is such that the sash isbodily removable from the casing, it is to be understood that it couldbe supported for swinging movement relative thereto or other bodilymovement relative to the window opening. In the structure illustrated,the sash frame 47 is formed of wood or other non-magnetic materialwhereby the housings 52 may be secured thereto with one side plate 56engaging the wood portion of said sash frame. If the sash frame is madeof metal, then the plate 56 should be spaced therefrom by a suitablespacer of non-magnetic material. The plate 56 is supported in spacedrelation to the other side plate 57 by means of spacers 58 ofnon-magnetic material to form the housings 52. The housings 52 aresuitably secured to the sash frame by fastening devices such as screws59 of non-ferrous metal which extend through aligned holes in thenon-magnetic spacers 58 When respective armature plate mounted on theblind stop 46. When the magnets are removed from the respectivehousings, the sash may be bodily removed from the closing positionrelative to the window opening. When it is desired to close the window,the sash is moved into position with the ribs 53 engaging the seal strip49 and with the passages 51 of the housings 52 registering with thearmature plates 50 and the magnets are then slipped into the passage ofthe respective housing until the ends 61 engage the stops 62 at whichposition the magnetic ilux is increased whereby the magnets firmly holdthe sash in place.

It is to be understood that while I have illustrated and described oneform of my invention, it is not to be limited to the specific form orarrangement of parts herein described and shown except insofar as suchlimitations are included in the claims.

What I claim and desire to secure by Letters Patent is:

1. A window construction of the character described comprising, a windowcasing, a stop extending around the window casing and defining a windowopening, a window sash having a frame bodily movable relative the windowopening, a plurality of permanent bar magnets, a plurality of armatureplates fixed to the window casing around the window opening, a pair oflaterally spaced mild steel plates for each magnet, non-magnetic memberssupporting the plates in spaced relation in a unit forming an open endedhousing having a passage between the side plates whereby the magnets areremovably and slidably positioned in the passages and sandwiched betweenthe respective pairs of plates, means fixing the side plate unitsrelative to the window sash with open ends of the passages between theside plates registering with the respective armature plates with theadjacent ends of the side plates engaging said armature plates when thewindow sash is in closing position relative the window opening, and stopmeans extending into the passages between the side plate adjacent thearmature plates and engageable by the adjacent ends of the respectivemagnets to retain same slightly spaced from the armature plates wherebythe magnets retain the sash in place until I the magnets are removed.

2. A window construction of the character described comprising, a windowcasing, a stop extending around the window casing and defining a windowopening, a window sash having a frame bodily movable relative the windowopening, a resilient seal strip on one of the stop and window sash,cooperative structure associated with the other of the stop and windowsash for engaging said resilient strip to form a weathertight sealtherewith, a plurality of permanent bar magnets, a plurality of armatureplates fixed to the window casing around the window opening, a pair oflaterally spaced mild steel plates for each magnet, non-magnetic memberssupporting the plates in spaced relation in a unit forming an open endedhousing having a passage between the side plates whereby the magnets areremovably and slidably positioned in the passages and sandwiched betweenthe respective pairs of plates, means fixing the side plate unitsrelative to the window sash with open ends of the passages between theside plates registering with the respective armature plates with theadjacent ends of the side plates engaging said armature plates when thewindow sash is in closing position relative the window opening, and stopmeans fixed relative the side plate units adjacent the armature platesand engageable with the adjacent ends of the respective magnets toretain same slightly spaced from the armature plates whereby the magnetsretain the sash in place until the magnets are removed.

3. A window construction of the character described comprising, a windowcasing, a stop extending around the window casing and defining a windowopening, a window sash having a frame bodily movable relative the windowopening, a removable frame associated with the window sash, a pluralityof permanent bar magnets, a plurality ii of armature plates fixed to thewindow casing around the window opening, a pair of laterally spaced mildsteel plates for each magnet, non-magnetic members supporting the platesin spaced relation in a unit forming an open ended housing having apassage between the side plates with a cross section substantiallycorresponding to the cross-sectional shape and size of the respectivemagnets whereby the magnets are removably and slidably positioned andsandwiched between the respective pairs of plates, means fixing the sideplate units relative to the removable frame with the open ends of thepassages between the side plates registering with the respectivearmature plates with the adjacent ends of the side plates engaging saidarmature plates when the window sash is in closing position relative thewindow opening, and stop means on the side plate units adjacent thearmature plates and engageable with the adjacent ends of the respectivemagnets to retain same slightly spaced from the armature plates wherebythe magnets retain the sash in place until the magnets are removed.

4. A window construction of the character described comprising, a windowcasing, a stop extending around the window casing defining a windowopening, a window sash having a frame bodily movable relative the windowopening, inter-engageable seal means on the window sash and stop to forma weathertight seal therebetween, a plurality of spaced magnetic unitssecured to the window sash around the periphery thereof, mild steelplates supported in each magnetic unit in laterally spaced relation anddefining opposite sides of through passages, armature plates fixed onthe stop and positioned to be engaged by edges of the side plates at theends of the passage when the window sash is in window opening closingposition, and a plurality of permanent magnets one for each magneticunit removably and slidably positioned in the passages of the respectivemagnetic units, and stops in the,

respective passages adjacent the end thereof toward the armature platesto prevent the magnets engaging the armature plates whereby the magnetsand side plates provide an increased magnetic flux to firmly hold thewindow sash relative to the window casing.

5. A window construction of the character described comprising, a windowcasing, a stop extending around the window casing defining a windowopening, a window sash having a frame bodily movable relative the windowopening, a resilient seal strip fixed on-the stop, means on the windowsash engageable with the resilient seal strip to form a weathertightseal therewith, a plurality of magnetic units each including a pair ofmild steel plates laterally spaced and defining opposite sides ofthrough passages, non-magnetic members supporting the pairs of mildsteel plates in spaced relation and securing same to the window sashwith the through passages perpendicular to the stop, armature platesfixed on the stop and positioned to be engaged by end edges of the sideplates when the window sash is in window opening closing position, and aplurality of permanent magnets one for each magnetic unit removably andslidably positioned in the passages of the respective magnetic units insandwiched relation to the mild steel plates, and non-magnetic stops inthe respective passages adjacent the end thereof toward the armatureplates to limit movement of the magnets toward the armature plateswhereby the magnets are slightly spaced therefrom.

6. A window construction of the character described comprising, a windowcasing, a stop extending around the window casing defining a windowopening, a window sash having a frame bodily movable relative the windowopening, a resilient seal strip fixed on the stop, means on the windowsash engageable with the resilient seal strip to form a weathertightseal therewith, a plurality of magnetic units secured to the window sashat the periphery thereof, said magnetic units having a through passageperpendicular to the stop, mild steel plates laterally spaced anddefining opposite sides of the respec- 6 tive passages, armature platesfixed on the stop and positioned to be engaged by end edges of the sideplates when the window sash is in window opening closing position, and aplurality of permanent magnets one for each magnetic unit removably andslidably positioned in the passages of the respective magnetic units,and nonmagnetic means in the respective passages adjacent the endthereof toward the armature plates to retain the magnets in spacedrelation relative to the armature plates whereby the magnets and sideplates provide an increased magnetic flux to firmly hold the Window sashrelative to the window casing.

7. A window construction of the character described comprising, a windowcasing, a blind stop extending around the casing defining a windowopening, a window sash having a frame bodily movable through the windowpeuing, means on the window casing pivotally mounting the window sashfor movement of said sash from open position to window closing position,an auxiliary frame-removably positioned in surrounding relation to thewindow sash and having portions for engaging the sash and casing to forma weathertight seal therewith, a plurality of permanent bar magnets, aplurality of.

armature plates fixed to the window casing around the window opening, aplurality of magnet housings each having a pair of laterally spaced mildsteel plates forming sides of passages perpendicular to the armatureplates whereby the magnets are removably and slidably positioned andsandwiched between the respective pairs of plates, means mounting themagnet housings on the auxiliary frame with the passages between theplates registering with the armature plates and the ends of the sideplates engaging said armature plates when the auxiliary frame is insealing engagement with the seal strips on the casing and sash, andstops in the passages between the side plates adjacent the end towardthe armature plates and engageahle with the end of the magnets to limitmovement thereof toward the armature plates.

8. A window construction of the character described comprising, a windowcasing, a blind stop extending around the casing defining a windowopening, a window sash having a frame bodily movable through the windowopening, means on the window casing pivotally mounting the window sashfor movement of said sash from open position to window closing position,a resilient seal strip on the casing blind stop around the windowopening, an auxiliary frame removably positioned in surrounding relationto the window sash and having portions for engaging the seal strip onthe casing to form a weathertight seal therewith, a plurality ofpermanent bar magnets, a plurality of armature plates fixed to thewindow casing around the window opening, a pair of laterally spaced mildsteel plates for each magnet, non-magnetic members supporting the pairsof plates in spaced relation in units forming open ended housings withthrough passages between the pairs of side plates perpendicular to thearmature plates whereby the magnets are removably and slidablypositioned and sandwiched between the respective pairs of plates, meansmounting the plate units on the auxiliary frame with the passagesbetween the plates registering with thearmature plates and the ends ofthe side plates engaging said armature plates when the auxiliary frameis in sealing engagement with the seal strips on the casing and sash,and non-magnetic means in the passages between the side plates of therespective side plate units adjacent the end toward the armature platesand engageable with the end of the magnets to retain same slightlyspaced from the armature plates whereby the magnets retain the sash inplace until the magnets are removed.

9. A window construction of the character described comprising, a windowcasing, a blind stop extending around the casing defining awindowopening, a window sash having a frame bodily movable through thewindow opening, means on the window casing pivotally mounting the windowsash for movement of said sash from open position to window closingposition, a resilient seal strip on the window sash, a second resilientseal strip on the casing blind stop around the window opening, anauxiliary frame removably positioned in surrounding relation to thewindow sash and having portions for engaging the seal strips on the sashand casing to form a weathertight seal therewith, a plurality ofpermanent bar magnets, a plurality of armature plates fixed to thewindow casing around the window opening, a pair of laterally spaced mildsteel plates for each magnet, non-magnetic members supporting the pairsof plates in spaced relation in units forming open ended housings withthrough passages between the pairs of side plates perpendicular to thearmature plates, said passages between the side plates having a crosssection substantially corresponding to the cross-sectional shape andsize of the respective magnets whereby the magnets are removably andslidably positioned and sandwiched between the respective pairs ofplates, means mounting the plate units on the auxiliary frame with thepassages between the, plates registering with the armature plates andthe ends of the side'plates engaging said armature plates when theauxiliary frame i in sealing engagement with the seal strips on thecasing and sash, and non-magnetic means in the passages between thesideplates of the respective side plate units adjacent the end towardthe armature plates and engageable with the end of the magnets to retainsame slightly spaced from the armature plates whereby the magnets in thesash in place until the magnets are removed.

References Cited in the file of this patent UNITED STATES PATENTS2,659,115 Anderson et al. Nov. 17, 1953 2,744,299 Travis May*& 19562,758,344 Williams Aug. 14, 1956

